baber/WOPTO huggingface dataset:
Patent GB-602688-A (GB)
Title: Improvements in operating systems worked by hydraulic pressure
IPC: F15B7/06
Filed: 1945-11-09
Abstract: 602,688. Hydraulic machines. BENDIX AVIATION CORPORATION. Nov. 9, 1945, No. 29932. Convention date, Nov. 28, 1944. [Class 69 (ii)] A hydraulic actuating system comprises a motor cylinder 10 and a piston 11 having a piston-rod. 12 extending from the piston through one end only of the cylinder, whereby the piston displaces less liquid on the rod side than on the other side, a reservoir 25, a reversible electricallydriven pump 16 having two ports, each becoming an inlet and an outlet depending on the direction of rotation of the pump, conduits 18, 17 connecting one port to the rod end of the cylinder and conduits 15, 13 connecting the other port to the other end of the cylinder, and means for equalizing liquid flow through the pump ports comprising a connection 23 including a check valve 24 for permitting liquid flow directly to conduit 18 from the reservoir and preventing flow from the latter to the reservoir, a connection 27 including a normally closed valve 33 between the reservoir and the conduit 15, and pressure responsive means 36 for opening the valve in response to pressure in excess of a predetermined value in the conduit 18. The pump motor switches are controlled' by liquid-actuated valves 54, 55 and fall in pressure due to leakage of liquid causes one of these valves to operate the pump. A hydraulic locking valve 14 and pressure relief valves 70 are provided.
Patent GB-617582-A (GB)
Title: Improvements in padlocks
IPC: E05B67/02
Filed: 1946-10-08
Abstract: 617,582. Padlocks. REYNOLDS & CO., Ltd., J. E., and REYNOLDS, J. E. Oct. 8, 1946. No. 29956. [Class 44] In a padlock case having double front and back plates, the inner front plate 7, Fig. 11, is provided with a key hole and the outer front plate 8 has a slot with over-hanging side ribs 11 to form a guide for a sliding key-hole cover 10 The rim 1 of the case has edge projections located in slots 4, Fig. 7, formed in the inner back plate 3. The slots are covered by the outer back plate 5. The parts are held together by pins 6 secured to the outer back plate and riveted over against the outer front plate. The key pin 12 is fixed to the inner back plate 3.
Patent GB-1432419-A (GB)
Title: Process for producing cellular polyolefin
IPC: C08J9/00
Filed: 1973-06-25
Abstract: 1432419 Cellular polyolefines UNION CARBIDE CANADA Ltd 25 June 1973 [29 Sept 1972] 30022/73 Heading C3C Cellular polyolefines, e.g. polyethylene, are made by injecting a gas inert to the polyolefine, e.g. nitrogen, into a molten mass of a C 2 _ 4  olefine, which has been mixed with 0À01-0À20% by wt. of a finely divided polytetrafluoroethylene as a nucleating agent, the molten mass being maintained below the m.p. of the polytetrafluoroethylene, while continuing the mixing, and then cooling the mass. The polytetrafluoroethylene may be mixed with the polyolefine as an aqueous dispersion in an extruder, pelletized and then fed into an extruder where nitrogen is injected and the resultant cellular polyolefine is then extruded.
Patent GB-737730-A (GB)
Title: Improvements in or relating to an electronic storage unit for a photographic recorder
Filed: 1951-12-19
Abstract: 737,730. Valve coincidence circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 19, 1951 [Dec. 30, 1950], No. 30032/53. Divided out of 737,657, [Group XL (b)]. Class 40 (6). A series of thyratrons 185-191 (Fig. 11) held initially non-conducting by virtue of a negative bias from source 220, are arranged to receive signals from a device at terminals 20 and signals from a code amplifier at terminals 24. The earthing of a terminal 20 causes the corresponding thyratrons to conduct until the H.T. supply at terminal 235 is interrupted, as described below, at the end of each cycle. The voltage at junction 250 is reduced by the thyratron anode current through resistor 251, and is only restored to full value when a corresponding positive pulse signal is received at terminals 24 from the code amplifier, when a pulse is sent to the control grid 267 of a multi-electrode valve 264, which, at the moment of a timing pulse at electrode 272 from a timing unit via terminal 179, is rendered conductive, sending a pulse via terminal 286 to trigger an arc (not shown). The pulse at terminal 286 is also transmitted via valves 289, 300 to thyraton 185, which is thus made to fire, and prevents generation of a further triggering pulse during the cycle. The reset amplifier comprises a series of valves 325-329 (Fig. 13) wherein the pulse received on photo-cell 11a is amplified and squared to be fed to normally non-conducting valve 331, which thereupon sends a negative pulse to valves 340- 342 to render them non-conductive, and reduce the voltage at terminal 235 substantially to zero.
Patent GB-1147090-A (GB)
Title: Amplifier
IPC: H03K5/24
Filed: 1967-06-29
Abstract: 1,147,090. Integrating circuits. APPLIED DYNAMICS Inc. 29 June, 1967 [26 Oct., 1966], No. 30041/67. Heading G4G. [Also in Division H3] A circuit comprises a number of pre-amplifiers A-1 . . .A-3 connected by a selective switching circuit 15 to a common output amplifier AP, and a negative feedback connection from the output amplifier to the pre-amplifiers. The circuit may be employed on a limiter, or an integrator. Limiter, Fig. 2.-If input signal e i  is between reference signals e 1 , e 2  it is fed via transistors 21, 23 to output 20. Sufficient negative feedback is applied via resistors RF2, RF3 to out off transistors 22, 24. If e i  goes outside the limits set by e 1 , e 2 , transistor 21 is cut off, and either 22, or 24 become conductive to connect reference e 1  or e 2  to the output. A binary output which changes its level at the limit points may be obtained at 14<SP>1</SP> or 31. A single limit circuit is also described, Figs. 1, 1A (not shown). In a modification of Fig. 2 the resistor RF1 may be replaced by a capacitor to integrate the output. Integrator, Fig. 3B.-The switching circuit 15C comprises three diode gates S1, S2, S3 any one of which can be opened by a control signal on a respective control signal input 41, 42, 43. With gate S1 open, A-1, APb and capacitor C1 form an integrator for input signal e i . The resulting integrated output e 0  charges capacitor C2, and closing switch S1 and opening switch S3 causes the output to "hold" at the potential across C2. The circuit can be reset by opening gate S2 which connects a reference signal e 1c .
Patent GB-188208-A (GB)
Title: Improvements in treating certain waste liquors and obtaining valuable products therefrom
IPC: C09C1/26
Filed: 1921-11-11
Abstract: The waste liquor from aniline black dyeing in which ferrocyanide is used, is treated with ferrous sulphate so that the liquor is acid or neutral, and the precipated blue is separated. The precipitate which is of no value as a pigment is dissolved by treatment with an alkali, alkaline earth or ammonia, a hydrate of iron being also produced.  To the liquor is then added an excess of an organic or inorganic acid, or first a ferrous or ferric salt and then excess of the acid, when a blue precipitate is obtained which is a good pigment.
Patent GB-393838-A (GB)
Title: A device for finding true horizontal, vertical or other angular lines
IPC: G01C9/00
Filed: 1932-10-27
Abstract: 393,838. Determining inclination of lines. MITCHELL, J. S., 539, Dalmarnock Road, Glasgow. Oct. 27, 1932, No. 30101. [Classes 97 (ii) and 97 (iii).] An instrument for determining the inclination of lines relative to the horizontal comprises a casing supporting a spindle on which is freely mounted a cord drum, a hollow guide arm projecting from the spindle through a slot in the casing and having the cord extending therethrough, means on the arm for clamping the cord and the arm, and means outside the casing and operated by pivotal movement of the arm for indicating the inclination at which the cord extends. In the form shown, the drum 10 is freely mounted on the spindle 8 in the casing 6 and the cord 11 is led therefrom through an eye 12 and the hollow arm 13 which is fixed to the spindle 8 and is permitted to rotate therewith by a slot 14 in the casing 6. A nut 22 is adapted to clamp the arm in any desired position and a further nut (not shown) on a split nozzle at the end of arm 13 is adapted to grip the cord when a sufficient length has been withdrawn. The casing 6 is adapted to be set by a weighted pointer or other level on the dial plate 7 and a pointer 17 on the spindle 8 and moving with the arm 13 indicates the angle at which the cord extends on a scale on the plate 7. The drum 10 may be turned to rewind the cord by a knurled periphery 26 projecting through an aperture in the casing.
Patent GB-1062166-A (GB)
Title: Vitreous compositions
IPC: C03C8/10
Filed: 1965-07-15
Abstract: A silver composition for fixing on to a ceramic body consists essentially of, in percentages by weight, finely divided silver flake powder 35 to 70; a vitreous bind in 10 to 25; an organic vehicle 15 to 45 and not more than 5% other materials; the vitreous bind in consists of bismuth oxide 87 to 92 and a glass frit 8 to 13, the glass frit consisting of PbO 50 to 73; PbF2 5 to 30; B2O3 13 to 27 and not more than 10% other materials: the organic vehicle consists of a polymethacrylate of a 154 carbon aliphatic alcohol; pine oil 70 to 85 and not more than 5% other materials.  The composition is applied e.g. by spraying, brushing or by a stencil screen and is fired at 1100 DEG  to 1500 DEG F.ALSO:A glass frit consists essentially in percentages by weight of PbO 50 to 73; PbF2 5 to 30; B2O3 13 to 27 with not more than 10% of other materials.  A vitreous binder consists of the glass frit 8 to 13% and bismuth oxide 87 to 92%. All constituents may initially be in the form of compounds; in particular bismuth subnitrate is used.  The vitreous binder is particularly used for firing silver coatings on a ceramic body at 1100 DEG  to 1500 DEG  F., the silver composition consisting of finely divided silver flake powder 35 to 70; vitreous binder 10 to 25; an organic vehicle 15 to 45 and not more than 5% of other materials. The organic vehicle consists of a polymethacrylate of a 1 to 4 carbon aliphatic alcohol 15 to 30; pine oil 70 to 85 and not more than 5% of other materials.  The silver composition is applied to the ceramic body, e.g. by spraying, brushing or by a stencil screen. Three examples are given.
Patent GB-1401195-A (GB)
Title: Apparatus for drying fluent materials
Inventor: BACHMANN R T
IPC: F26B17/20
Filed: 1972-06-28
Abstract: 1401195 Drying fluent materials LUWA AG 28 June 1972 [1 July 1971] 30299/72 Heading B1B [Also in Division F4] Liquid, slurry or granular material is fed at 20 into a stationary heated (or cooled) cylinder 16, conveyed by a helical band 54 to longitudinal vanes of different form carried by a rotor portion 42, and is discharged at 22, one of the vanes being resiliently connected to the rotor 42 and extending closer to the cylinder 16 than another vane which is rigidly connected to the rotor 42. Entrained droplets are removed from the released vapour by impingement with a perforated helical band 62, the vapour being discharged at 24 to a condenser (not shown). The helical band 58 assists discharge of the material at 22. In Figs 4 & 5 the vanes comprise a wiper blade 80 which determines the thickness of the material layer on the cylinder wall, an agitator blade 82 moving close to the cylinder wall and supported by webs 84 to provide the apertures, a cranked comminution blade 88 (divided into four sections) serving to comminute the material, and a scraper blade 48 (in four sections) secured to a blade spring 50 and moving close to the cylinder wall. In another embodiment, one (or two) blade(s) 48 and one (or two) blades similar to the blades 82 but cranked are provided.
Patent GB-196316-A (GB)
Title: Improvements in apparatus for cooling air
IPC: F25B9/00
Filed: 1921-11-14
Abstract: 196,316. Metzger, C. Nov. 14, 1921. Refrigerating, cold-air machines and processes for.-Previously cooled compressed air, which is allowed to expand and do work in a cylinder 1 before admission, in an expanded state, to the chamber to be cooled, is admitted alternately by timed cocks 10, 11 to opposite sides of the piston 3, and moves the piston to discharge the expande'd air from the other side thereof through other timed cocks 12, 13 alternately. Pistons 4, 5 on the same rod as the main piston are thus moved to compress air or other fluid contained in cylinders 2, 2a and to discharge it through orifices 9, 8 of predetermined dimensions, and thence through pipes 14, 15, extending into cooling jackets 17, 16. The cylinders 2, 2a are separated from the main cylinder by air-tight packings 7, 6. The compressed fluid discharged from the pipes 14, 15 thus serves merely as a medium on which the expanding air can do work.
Patent GB-443701-A (GB)
Title: Improvements in or relating to means for applying heat to road surfaces
IPC: E01C23/14
Filed: 1935-11-02
Abstract: 443,701. Stays. McCANN, J. E., 67, Blenheim Road, Caversham, Reading, BOLTON, J. B., Ferndale, Calcot Row, near Reading, and MECHANICAL TAR-SPRAYING & GROUTING CO., Ltd., 118, Victoria Street, Westminster. Nov. 2, 1935, No. 30365. [Class 65 (i)] [See also Group X] Relates to road - surface heating machines of the kind in which hinged depending flaps c are provided along the lower edges of a hood b, and consists in the provision of means for adjusting the flaps and for locking them in any position of adjustment. In the construction shown, links d are pivoted at d<1> to the flaps and at d<2> to rods e which are slidably mounted between the arms f of U-shaped brackets f mounted on the head. A hand-lever g is pivoted at g<1> to the bracket and has a cam surface g<2> which, upon upward movement of the lever, bears against the rod e and locks it by forcing it against the base of the bracket.
Patent GB-1119958-A (GB)
Title: Process for the preparation of hydroperoxides
Inventor: BONNART JACQUES PAUL MARIE
IPC: C07C409/14
Filed: 1967-06-30
Abstract: Cycloalkyl hydroperoxides are prepared by contacting a cycloalkane in the liquid phase at elevated temperature with oxygen, separating the hydroperoxide formed, and recycling at least part of the unoxidized cycloalkane to the oxidation zone after treatment with a basic reagent.  The oxygen may be introduced into the oxidation zone as air or, preferably air mixed with an inert gas such as nitrogen or carbon dioxide.  An example describes the preparation of cyclohexyl hydroperoxide.
Patent GB-306523-A (GB)
Title: Rolling stock of railways, tramways or road transport
IPC: B61F5/48
Filed: 1928-10-22
Abstract: 306,523. Algrain, P. Feb. 23, 1928, [Convention date]. Addition to 278,337, [Class 79 (v), Motor vehicles, Steering &c.], and 287,541. Axle - trucks and bogies.-In a railway &c. vehicle according to the parent Specification a connection 58, 59 is established between the frame 1a and each 'rolling sector 31, so that, when the frame is no longer in contact with any sector, the angular displacements of the latter are still controlled by the displacement of the frame. The rolling surface of the sector 31 is a part frustum of a cone having as axis the theoretical axis of rotation of the sector and with the point 57 as apex. The rolling surface 1<b> on plate 1<a> is a part frustum of a cone having as axis the axis of the centre pivot pin 3 and with the point 57 as apex. The connections 58, 59 are crossed and are connected to the opposite sides of the sector and plate 1<a>. When the plate 1<a> or the frame to which it is attached is rotated one band 58 or 59 is wound on the sector whilst the other is unwound so that the sector always maintains its correct angular position relatively to the frame even if not in contact with it.
Patent GB-639530-A (GB)
Title: Rotary take-ups for sewing machines
IPC: D05B49/04
Filed: 1948-08-11
Abstract: 639,530. Sewing-machines. SINGER MANUFACTURING CO. Aug. 11, 1948, No. 30643. Convention date, May 12. Divided out of 639,516. Drawings to Specification. [Class 112] Lock-stitching by eyed needles.-A rotary take-up comprises a thread-engaging element which has simultaneously simple revolutionary movements about two centres spaced from one another and from the centre-line of the element, and is rotated in a direction countering at least one of the revolutionary movements. The description and drawings are identical with those of Specification 639,516.
Patent GB-1430447-A (GB)
Title: Process for the manufacture of polymerizates of olefinic  nitrile and diene rubbers
IPC: C08F279/02
Filed: 1973-06-28
Abstract: 1430447 Grafted diene polymers STANDARD OIL CO 28 June 1973 [27 July 1972] 30786/73 Heading C3G A process for preparing an impact-resistant, gas-barrier resin comprises polymerized in an aqueous emulsion 100 parts by weight of: (A) at least 70% by weight of alpha, betaolefinically unsaturated acrylonitrile having the structure CH 2  = CRCN wherein R is hydrogen, alkyl (C 1 -C 4 ), or halogen; and (B) an amount of up to 30% by weight based on the combined weights of (A) and (B) of an ester of an olefinically unsaturated carboxylic acid having the structure CH 2  = C(R 1 )COOR 2  wherein R 1  is hydrogen, alkyl (C 1 -C 4 ) or halogen and R 2  is alkyl (C 1 -C 6 ) in the presence of 1-40 parts by weight of ; (C) a copolymer of a conjugated diene monomer which is butadiene-1,3 or isoprene and an olefinically unsaturated nitrile having the structure CH 2  = CRCN wherein R has the foregoing designation, said copolymer containing from more than 50% to 95% by weight of polymerized conjugated diene monomer, and from 5% to less than 50% by weight of polymerized olefinically unsaturated nitrile, and said copolymer containing 10-60% by weight of gel and having been prepared to at least 75% conversion in the presence of 0À2-1À5 p.h.m. of a mercaptan to obtain the requisite gel content. In the specific examples there is disclosed processes in which: (1) 75 parts by weight of acrylonitrile and 25 parts by weight of methyl acrylate are graft polymerized in the presence of 9 parts by weight of a rubber latex comprising butadiene- 1,3 and acrytlonirile in a weight ratio of 70 : 30; and (2) 95 parts by weight methacrylonitrile and 5 parts by weight methyl methacrylate are graft polymerized in the presence of 20 parts by weight of a rubber latex comprising butadiene- 1,3 and acrylonitrile in a weight ratio of 65: 35. Comparative examples are given in which the copolymer has a gel content outside the range 10-60%.
Patent GB-741216-A (GB)
Title: Improvements in or relating to the concentration of aqueous hydrazine by distillation
IPC: C01B21/16
Filed: 1953-11-09
Abstract: <PICT:0741216/III/1> Substantially anhydrous hydrazine is obtained from an aqueous solution thereof by submitting the aqueous solution to extractive distillation with a glycol solvent whereby water-vapour passes over from the head of the distillation-column and there is obtained as bottoms fraction a substantially anhydrous solution comprising hydrazine and the glycol; this bottoms fraction is then submitted to ordinary fractionation to obtain substantially anhydrous hydrazine as heads product, and the glycol as bottoms. Ethylene glycol is especially advantageous as solvent; but propylene glycol, butylene glycols and diethylene glycols may also be used.  Dilute aqueous hydrazine from the synthesis reaction is charged through line 10 to still 11, which is heated by reboiler 13 so as to maintain a base-temperature of 122 DEG C. Water vapour is taken off overhead, and hydrazine hydrate collects in reboiler 13.  The hydrate is passed through line 19 to extractive still 20.  Ethylene glycol (about 4 parts per part of hydrate) is introduced into an upper section of still 20 through line 23; and the still is heated by reboiler 25 to maintain a base temperature of about 160 DEG C.  Water vapour is withdrawn from the top of still 20.  There is obtained in reboiler 25 a solution of hydrazine and glycol containing about 1 per cent of water.  This solution is passed through line 31 to still 32, which is heated by reboiler 34.  The fractionation in still 32 is carried out in the presence of an inert gas, such as nitrogen.  Vapours containing at least 95 per cent of hydrazine are taken off overhead, and condensed in condenser 37.  Part of the condensate is withdrawn as product through line 39, and the remainder is returned, through line 38, to serve as reflux in still 32.  Glycol containing 1 to 10 per cent of hydrazine is withdrawn from reboiler 34, and is recycled through lines 21 and 23 to the upper section of extractive still 20.
Patent GB-1423536-A (GB)
Title: Tablets containing bleaching activators suitable for use  with textile washing agents
IPC: C11D17/00
Filed: 1973-06-29
Abstract: 1423536 Bleaching activator tablet HENKEL & CIE GmbH 29 June 1973 [3 July 1972 29 Dec 1972] 31017/73 Heading D1P A tablet suitable for use in textile washing agents contains, by weight, from 85 to 98% of at least one granular bleaching activator which forms peracids with hydrogen peroxide and whose activation value (as defined in the Specification) is at least 3, 0.2 to 5% of a water-soluble, film forming polymer coating the granules, 1.6 to 15% of a water-soluble or swellable starch and/or carboxymethyl starch, and 0.2 to 1.5% of a magnesium and/or a calcium salt of a saturated fatty acid (16 to 20C). The preferred grain size is from 0.1 to 1 mm. The activator may be a N-acyl or O- acyl compound having a melting point of at least 70‹C and an equivalent weight of not more than 170. Specified activators include tetraacetyl glycol uryl, tetraacetyl methylene diamine and tetraacetyl ethylene diamine. The film-forming polymer may comprise sodium carboxymethyl cellulose or polyvinyl alcohol. The starch may be native potato starch or sodium carboxymethyl starch having from 0.15 to 0.5 carboxymethyl groups per unit of anhydroglucose. The fatty acid salt may comprise magnesium stearate in an amount of 0.4 to 1%. The tablet may further comprise up to 2% of colloidal silicon dioxide and up to 2% of a wetting agent. The tablet may have a diameter of from 5 to 50mm, preferably from 10 to 30mm and a thickness of from 2 to 25mm, preferably from 3 to 20 mm. It may be combined with a textile washing agent by sealing tablets in a metal or plastics film and placing them into a package filled with the washing agent, or attaching them to the outside of the package which may be provided with depressions for receiving them. The washing agent may comprise detergents, polyphosphate builder salts, alkaline silicates, sequestering agents and percompounds. The tablet is prepared by granulating the bleaching activator in contact with an aqueous solution containing from 1 to 5% by weight of the film-forming polymer, e.g. in a fluidised bed, rolling drum mixer or paddle mixer, the surplus water being removed, e.g. by hot air, and the resulting granulate being mixed with the other constituents prior to being pressed into a tablet at a pressure of from 100 to 1000 kg/sq. cm.